1 /* SPDX-License-Identifier: LGPL-2.1-or-later */ 2 #pragma once 3 4 #include <stdbool.h> 5 #include <stdio.h> 6 7 typedef enum HostnameSource { 8 HOSTNAME_STATIC, /* from /etc/hostname */ 9 HOSTNAME_TRANSIENT, /* a transient hostname set through systemd, hostnamed, the container manager, or otherwise */ 10 HOSTNAME_DEFAULT, /* the os-release default or the compiled-in fallback were used */ 11 _HOSTNAME_INVALID = -EINVAL, 12 } HostnameSource; 13 14 const char* hostname_source_to_string(HostnameSource source) _const_; 15 HostnameSource hostname_source_from_string(const char *str) _pure_; 16 17 int sethostname_idempotent(const char *s); 18 19 int shorten_overlong(const char *s, char **ret); 20 21 int read_etc_hostname_stream(FILE *f, char **ret); 22 int read_etc_hostname(const char *path, char **ret); 23 24 void hostname_update_source_hint(const char *hostname, HostnameSource source); 25 int hostname_setup(bool really); 26